MrEditor
a Mac editor that opens a 10 GB log in 100ms and edits it
Details
- External ID
- 49549487
- Source
- HN
- Company
- —
- Product
- MrEditor
- Website domain
- github.com
- Launched
- Sept. 3, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.12998405103668262
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:31 a.m.
- Updated at
- Sept. 10, 2026, 5:31 a.m.
Enrichment
- Theme
- native desktop apps and utilities
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- fast editor for large log files
- Manually corrected
- False
Could you build this?
No Opening and editing a 10 GB file in 100ms on macOS requires custom memory-mapped I/O, specialized data structures like piece tables or ropes, and high-performance native text layout engines.
What it would actually take: Built with Swift/Objective-C/C++ using low-level Darwin syscalls (`mmap` with `MADV_WILLNEED`/`MADV_SEQUENTIAL`) to avoid loading the file into RAM. Text manipulation requires lock-free concurrent Piece Tables, B-trees, or Rope data structures combined with sparse byte-to-line-number indexing so edits do not rewrite gigabytes of data. The rendering layer requires virtualized viewport rendering utilizing Metal or CoreText directly. Deep systems programming, memory architecture, and text engine engineering expertise are strictly required.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 929 launches clear the similarity bar, closest 8 shown.
Attention rank: #781 of 930 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 306 days after the earliest competitor.
- Narrative: Cursor for Professional Video Editors · yc · 2025-11-01 · 33 upvotes · similarity 0.60
- Mole · hn · 2025-12-27 · 6 upvotes · similarity 0.59
- Notemac++ · hn · 2026-02-27 · 5 upvotes · similarity 0.59
- Kipless · github · 2026-09-11 · 7 upvotes · similarity 0.58
- Fast, Lightroom-compatible RAW photo editor for Linux and macOS · hn · 2026-09-30 · 5 upvotes · similarity 0.58
- timebar · github · 2026-09-22 · 9 upvotes · similarity 0.57
- WonderBox · github · 2026-09-20 · 181 upvotes · similarity 0.57
- Write.md · hn · 2026-08-11 · 107 upvotes · similarity 0.56
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.